This undated handout from the Nanyang Technological University (NTU) Singapore released on April 15, 2020 shows the eXtreme Disinfection roBOT (XDBOT), a semi-autonomous robot, as it disinfects a table in an eating area of the NTUsg Smart Campus in Singapore. - Singapore researchers have invented a disinfecting robot with an arm that mimics human movement, to help take the load off overworked cleaners during the coronavirus pandemic. (Photo by Handout / NTU SINGAPORE / AFP) / -----EDITORS NOTE --- RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO / NTU SINGAPORE" - NO MARKETING - NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS - NO ARCHIVE